Genotype × Environment Interaction and Stability Analysis of Seed Yield of Durum Wheat Genotypes in Dryland Conditions

  • Mohtasham MOHAMMADI Dryland Agricultural Research Institute (Wheat Breeding Program), Gachsaran Station
  • Rahmatollah KARIMIZADEH Dryland Agricultural Research Institute (Wheat Breeding Program), Gachsaran Station
  • Tahmaseb HOSSEINPOUR Seed and Plant Improvement Institute, P.O. Box 4119 , Karaj 31585
  • Hosein Ali FALAHI Seed and Plant Improvement Institute, P.O. Box 4119 , Karaj 31585
  • Hasan KHANZADEH Seed and Plant Improvement Institute, P.O. Box 4119 , Karaj 31585
  • Naser SABAGHNIA University of Maragheh, Faculty of Agriculture, Department of Agronomy and Plant Breeding, Maragheh
  • Pedram MOHAMMADI Islamic Azad University, Dehdasht Branch, Dehdasht
  • Mohammadd ARMION Dryland Agricultural Research Institute (Wheat Breeding Program), Gachsaran Station
  • Maghsoud Hasanpour HOSNI Dryland Agricultural Research Institute (Wheat Breeding Program), Gachsaran Station

Abstract

The objective of this investigation was to evaluate seed yield of twenty durum wheat (Triticum turgidum spp. durum) genotypes. Evaluation of genotype × environment interaction and stability were also carried out at five diverse locations during the 2007-2009 growing seasons. Significant differences were found among the genotypes for seed yield on individual years and combined over years, in all locations. Genotype × environment interaction showed significance (p>0.001) for seed yield. According to the coefficients of linear regression and deviations from the regression model, genotypes G2, G7 and G8 proved to be the most stable while based on ? and ? parameters, genotypes G7, G12 and G13 were identified the most stable. Clustering genotypes based on all stability methods and mean yield divided them into four major classes, which Class II had relatively high stability and high mean yield performance. To compare relationships among stability statistics, hierarchical clustering procedure showed that the ten stability statistics and mean yield could be categorized into three major groups, which methods of Group C indicated dynamic concept of yield stability. The genotypic stability, stability variance, superiority index and desirability index provide information for reaching definitive conclusions. Also, the best recommended genotypes, according to the present investigation, were G2 (2697.18 kg ha-1), G7 (2644.70 kg ha-1), G8 (2580.16 kg ha-1) and G10 (2637.43 kg ha-1), which had high mean yield and were the most stable genotypes based on the above mentioned stability statistics.

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Published
2012-08-30
How to Cite
MOHAMMADI, M., KARIMIZADEH, R., HOSSEINPOUR, T., FALAHI, H. A., KHANZADEH, H., SABAGHNIA, N., MOHAMMADI, P., ARMION, M., & HOSNI, M. H. (2012). Genotype × Environment Interaction and Stability Analysis of Seed Yield of Durum Wheat Genotypes in Dryland Conditions. Notulae Scientia Biologicae, 4(3), 57-64. https://doi.org/10.15835/nsb437807
Section
Plant Sciences; Ecology; Research Articles